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Finding the Fourth Proportional to 403,741.60, 605,612.40 and 366,343.90

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Solution

The fourth proportional to 403,741.60, 605,612.40 and 366,343.90 is: 549,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,741.60 : 605,612.40 = 366,343.90 : x
  2. Step 2: Convert to fraction form
    403,741.60/605,612.40 = 366,343.90/x
  3. Step 3: Cross multiply
    403,741.60x = 605,612.40 × 366,343.90
  4. Step 4: Simplify right side
    403,741.60x = 221,862,408,504.36
  5. Step 5: Solve for x
    x = 221,862,408,504.36/403,741.60
  6. Step 6: Final answer
    x = 549,515.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.